Aircraft



FIG. 1 is a front perspective view of an aircraft showing our newdesign;

FIG. 2 is a front view thereof;

FIG. 3 is a back view thereof;

FIG. 4 is a first side view thereof;

FIG. 5 is a second side view thereof;

FIG. 6 is a top view thereof; and,

FIG. 7 is a bottom view thereof.

The broken lines illustrate environment and structure that form no partof the claimed design.

CLAIM The ornamental design for an aircraft, as shown and described.